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#include <QtGui>

#include "mainwindow.h"

#include "xbelgenerator.h"

#include "xbelhandler.h"

MainWindow::MainWindow()

{

    QStringList labels;

    labels << tr("Title") << tr("Location");

    treeWidget = new QTreeWidget;

    treeWidget->header()->setResizeMode(QHeaderView::Stretch);

    treeWidget->setHeaderLabels(labels);

    setCentralWidget(treeWidget);

    createActions();

    createMenus();

    statusBar()->showMessage(tr("Ready"));

    setWindowTitle(tr("SAX Bookmarks"));

    resize(480, 320);

}

void MainWindow::open()

{

#if defined(Q_OS_SYMBIAN)

    // Look for bookmarks on the same drive where the application is installed to,

    // if drive is not read only. QDesktopServices::DataLocation does this check,

    // and returns writable drive.

    QString bookmarksFolder =

            QDesktopServices::storageLocation(QDesktopServices::DataLocation).left(1);

    bookmarksFolder.append(":/Data/qt/saxbookmarks");

    QDir::setCurrent(bookmarksFolder);

#endif

    QString fileName =

            QFileDialog::getOpenFileName(this, tr("Open Bookmark File"),

                                         QDir::currentPath(),

                                         tr("XBEL Files (*.xbel *.xml)"));

    if (fileName.isEmpty())

        return;

    treeWidget->clear();

    XbelHandler handler(treeWidget);

    QXmlSimpleReader reader;

    reader.setContentHandler(&handler);

    reader.setErrorHandler(&handler);

    QFile file(fileName);

    if (!file.open(QFile::ReadOnly | QFile::Text)) {

        QMessageBox::warning(this, tr("SAX Bookmarks"),

                             tr("Cannot read file %1:\n%2.")

                             .arg(fileName)

                             .arg(file.errorString()));

        return;

    }

    QXmlInputSource xmlInputSource(&file);

    if (reader.parse(xmlInputSource))

        statusBar()->showMessage(tr("File loaded"), 2000);

}

void MainWindow::saveAs()

{

    QString fileName =

            QFileDialog::getSaveFileName(this, tr("Save Bookmark File"),

                                         QDir::currentPath(),

                                         tr("XBEL Files (*.xbel *.xml)"));

    if (fileName.isEmpty())

        return;

    QFile file(fileName);

    if (!file.open(QFile::WriteOnly | QFile::Text)) {

        QMessageBox::warning(this, tr("SAX Bookmarks"),

                             tr("Cannot write file %1:\n%2.")

                             .arg(fileName)

                             .arg(file.errorString()));

        return;

    }

    XbelGenerator generator(treeWidget);

    if (generator.write(&file))

        statusBar()->showMessage(tr("File saved"), 2000);

}

void MainWindow::about()

{

   QMessageBox::about(this, tr("About SAX Bookmarks"),

            tr("The <b>SAX Bookmarks</b> example demonstrates how to use Qt's "

               "SAX classes to read XML documents and how to generate XML by "

               "hand."));

}

void MainWindow::createActions()

{

    openAct = new QAction(tr("&Open..."), this);

    openAct->setShortcuts(QKeySequence::Open);

    connect(openAct, SIGNAL(triggered()), this, SLOT(open()));

    saveAsAct = new QAction(tr("&Save As..."), this);

    saveAsAct->setShortcuts(QKeySequence::SaveAs);

    connect(saveAsAct, SIGNAL(triggered()), this, SLOT(saveAs()));

    exitAct = new QAction(tr("E&xit"), this);

    exitAct->setShortcuts(QKeySequence::Quit);

    connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));

    aboutAct = new QAction(tr("&About"), this);

    connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));

    aboutQtAct = new QAction(tr("About &Qt"), this);

    connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));

}

void MainWindow::createMenus()

{

    fileMenu = menuBar()->addMenu(tr("&File"));

    fileMenu->addAction(openAct);

    fileMenu->addAction(saveAsAct);

    fileMenu->addAction(exitAct);

    menuBar()->addSeparator();

    helpMenu = menuBar()->addMenu(tr("&Help"));

    helpMenu->addAction(aboutAct);

    helpMenu->addAction(aboutQtAct);

}